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After Schrödinger had shown the mathematical equivalence of wave mechanics, which he had discovered, with quantum mechanics, the fruitful combination of these two different areas of physical ideas resulted in an extraordinary broadening and enrich-ment of the formalism of the quantum theory.
This article reviews the first 100 years of quantum mechanics, with particular fo-cus on its mysterious side, culminating in the ongoing debate about its consequences for issues ranging from quantum computation to consciousness, parallel universes and the very nature of physical reality.
INTRODUCINGh. The story began inconspicuously enough on December 14, 1900. Max Planck was giving a talk to the German Physical Society on the continuous spec- trum of the frequencies of light emitted by an ideal heated body. Some two months earlier this 42-year-old theorist had presented a formula capturing some new experimental results.
Among the inventors of quantum mechanics, only deBroglie, Heisenberg, Schro¨dinger and Dirac wrote breakthrough papers that have such illogical and brilliantly successful long jumps.
MECHANICS, 1926. A rival to quantum mechanics was published by Schrodinger in the spring of 1926 1. It was a new theory, conceived independently of the insights of quantum mechanics and capable of being interpreted in a contrary sense. It was known as Wave Mechanics.
Bohr's early work was taken up, in the early 'twenties, with characteristic thoroughness and energy by the flourishing German schools of theo retical physics, clustered around the figures of...
1. Introduction. On December 14, 1900, Max Planck presented his derivation of the distri- bution law for black-body radiation to the German Physical Society, and the concept of energy quanta made its first appearance in physics.
To be sure, the introduction of the quantum of action has not yet produced a genuine quantum theory. In fact, the path the research worker must yet tread to it is not less than that from the discovery of the velocity of light by Olaf Rmer to the establishment of Maxwell's theory of light.
Einstein was a rare genius. He not only independently developed the theory of relativity, but also made important contributions to the development of quantum mechanics. Before Bohr proposed the quantum theory of atom, Einstein was almost alone in the development of quantum theory.
f this Institute, by attempting to sketch in outline the history of the origin of the Quantum Theory and to give a brief account of the development of this theory and its influence on the Physics of the present day. When I recall the days of twenty years ago, when the conception of the physical quan-tum of ‘action’ was first beginning to disenta...
Quantum field theory is the theory of matter and its interactions, which grew out of the fusion of quantum mechanics and special relativity in the late 1920s.
From 1906 to 1911, quantum theory was Einstein’s main concern (even more than the theory of relativity). He contributed to the specific heat of solids and to energy fluctuations of black-body radiation. In 1909, he foretold: “It is my opinion that the next phase of theoretical physics will bring us a
Mathematical formalism of classical physics of Isaac Newton (1642-1727)’s mechanics and James Clerk Maxwell (1831-79)’s electrodyamics was impeccable, and their thys well confirmed by many...
One was an effort to bring abstract order to the new ideas by looking for a key to translate classical mechanics and electrodynamics into quantum language which would form a logical gen-eralization of these. This was the direction which was taken by Bohr’s « correspondence principle ».
Gordon Reece, M.Sc, Imperial College London. The development of quantum theory in physics and chemistry has probably had more impact than any other development in twentieth-century science. Professor Hund — one of the few remaining scientists with first-hand knowledge of the events between 1900 and 1927 has comprehensively and accurately ...
Quantum Theory is a definitive historical study of that scientific work and the human struggles that accompanied it from the beginning. Drawing upon such materials as the resources of the Archives for the History of Quantum Physics, the Niels Bohr
A novel aspect of our account that has been missed in previous historical studies of Planck’s discovery is to show that Planck could have found his phenomenological formula partially derived in Boltzmann’s paper in terms of a variational parameter.
Russell McCormmach was probably the first historian to give a detailed account of Thomson’s ideas about the nature of light, in a 1967 article in The British journal for the history of science. In the same year he published “Henri Poincaré and the quantum theory” in Isis.
Quantum Theory is a definitive historical study of that scientific work and the human struggles that accompanied it from the beginning. Drawing upon such materials as the resources of the Archives for the History of Quantum Physics, the Niels Bohr
ABSTRACT: Fluorescence and phosphorescence are two forms of photoluminescence used in modern research and in practical applications. The early observations of these phenomena, before the emergence of quantum theory, highlight the investigation into the mechanism of light emission.